Construction of monolithic structures



June 1 1926.

J. B. HAWLEY, JR

CONSTRUCTION OF MONOLITHIC STRUCTURES Filed Sept. 1924 2 SheetSrSheet 1 ummm in R\\\\\\\\\\\\\\\\\\\\ g f A 1 June 1 1926. 1,586,991

J. B. HAWLEY; JR

CONSTRUCTION OF MONOLITHIKI STRUCT-URI lS Filed Sept. 2, 1924 2,Sheets-Sheet 2 ,J0777? .Z'ZZHaZ y' J7."

Patented June 1, 1926.

UNITED STATES PATENT OFFICE.

JOHN B. HAWLEY, JR.', OF FORT WORTH, TEXAS.

CONSTRUCTION OF MONCLITHIO STRUCTURES..

Application filed September 2, 1924.. Serial No. 735,247.

- such that the same tie rods may be used over and over in connection with the construction of many different structures. Also to provide tie rod constructions which are very' simple and can be very cheaply manufactured and maintained.-

Another feature of the invention relates to the manner in which the end portions of the tie rods are connected to the side walls of the forms. In this connection, it is an object to provide an arrangement such that when the forms are being set up, each tie rod including the central portion and its adjustable end connections can be assembled as a unit and then inserted as a unit endwise through the forms, so that there will be no necessity formanipulation of the assembled unit from points between the forms which is frequently inconvenient or difiicult and wasteful of time and labor.

The invention further provides for a construction such that the end sections of the tie rod can be readily removed from the completed structure leaving the center connecting portion imbedded with-inthe concrete, or, if desired, the center connecting portion can be likewise removed and the resulting hole plugged up, if it is desired to provide for a water tight seal. The arrangementis such that the manipulations neces sary in setting up and removing the forms can all be performed from the outside under conditions which insure rigidity and stability to the form during the cement pouring operation.

A furthe object in connection with the above features is to provide a special form of tool for facilitating the manipulation of the parts, which tool shall be readily usable at different locations at will.

Other objects and uses of the invention will appear from a detailed description of the same which consists in the features of construction and combinations'of parts here'- inafter described and claimed.

In the drawings Figure 1 shows a fragmentary perspective view of a portion of two side forms and the enclosed concrete wall, together with a tie rod embodying the features of the present invention, the wall section being broken away at such a point as to reveal the tie rod embedded therein;

Fig. 2 shows a fragmentary cross section through the forms and the concrete wall, Y

showing the tie rod and end sections in place, portions of the end sections being broken away so as to show the tie rod threaded into them, and the central portion of the figure belng broken away so as to reduce its size;

\ F ig. 3 shows a side elevation of a modified form of end member, the same being partly 1n section;

Fig. 4 shows a fragmentary view corresponding to one side of Fig; 2, the operating tool having been applied to the projectlng end of one of the end members, said end member being unscrewed from" the tie rod proper and then partially withdrawn from the concrete structure; and

Fig. 5 shows a View similar to that of Fig. 2, with the exception that the entire tie rod and both end-members have been removed, and both of the forms have been removed, and plugs have been set into the enlarged end recesses left by the removal of the end members aforesaid, one of said plugs being tamped into place so as to seal the opening.

In the arrangement shown in Fig. 1, the side forms are designated by the numerals 6 and 7. They are located between the vertical posts 8 and'9 in the usual manner. The concrete 1O is'poured between the side walls and allowed to set, after which the side walls are removed so as to leave only the concrete structure in place. The side walls are held together by a plurality of tie rods one of which is shown at 11 in Fig. 1.

Said tie rods include a central rod port'ion 12 the ends of which are threaded, preferably with like threads. The ends of the tie rod proper are adapted to receive the end members 13 and 14 respectively, which end members thread loosely onto the ends of the tie rod, said end members in turn projecting beyond the forms 6 and 7, as clearly indicated in Fig. '2. The projecting portions of. the end members are .preferably threaded of the central rod portion 12 with said end members when the tie rod sections are being assembled.

After the concrete has set and it is desired to remove the forms, the nuts 15 and 16 may be removed from the end members 13 and 14. Or, said end members may be removed from the forms and from. the concrete structure and tie rod proper in the manner now to be explained:

In Fig. 4 there is illustrated a special form of tool designated by the numeral 20. The same includes an internally threaded end socket 21 of proper size to take the projecting end portion of one of the end members 13 or 14:. Upon threading v the tool onto said projecting portion the nut 15 can be backed up so as to solidly engage the end of the tool. Thereupon by turning the tool the end member will be compelled to turn with it so as to unthread the end member from the tie rod proper and permit the end member to be withdrawn bodily, as indicated in Fig. 4. For the above purpose,

, the end of the tool may be provided with a squared or hexagonal head 22, as shown in Fig. 4, so as to receive a suitable wrench.

After one of the end members has been removed in the above manner, the other end member together with the tie rod proper can be easily removed by turning said other end member in the reverse direction by the tool when applied thereto.

After the tie rod proper and end members have been removed there will be left a small passage 23 through the body of the concrete structure, together with the relatively enlarged end recesses 2e and 25. In order'to close this pamage plugs of relatively soft material, such as lead 26, may be set into the enlarged and portions of the passage. Thereafter by ramming said plugs solidly into place they will be compelled to occupy the full size of the enlarged portion of the passage and also to throwinto the smaller central portion of the passage, as clearly indicated at 27 in Fig. 5.

In certain cases'it may be' desirable to permit the central rod portion to remain embedded in the completed structure, in which case the hole may easily be sealed with cement grout or in any other suitable manner, or the hole may be utilized for the attachment of fixtures or the like in any a suitable and convenient manner.

It will be noted that the end members of connecting rod and that the holes or perforationsthrough the forms are of a size to receive the end portions, which arrangement easily permits the entire rod to be preassembled as a unit and shoved through from one form to the other after which the threaded ends, which receive the bolts, permit of the necessary adjustment of the forms to draw them down to the exact positions which they are intended to occupy. Moreover, the arrangement is one which permits the entire tie rod to be preadjusted in the shop or elsewhere to such a length in excess of the intended spacing of the forms as will afford in each instance a sufficient projection of the rod as a whole through the form to afford easy manipulation of the nuts from points outside of the form, which is much superior to any arrangement which necessitates any kind of manipulation from an interior point. By loosely threading the end sections onto the center connecting rod, the parts may be readily .unthreaded by the use of the wrench described, or in any other convenient manner.

In Fig. 3 I have shown a modified form of end member 28 which is provided with an integral head 29 in .lieu of the adjustable nut 16 previously described. The end member 28 may be used in conjunction with an end member 19 which is threaded to receive the nut, and in such case, the tie rod assembly can be inserted through the form from one side only, to bring the head 29 into contact with the adjacent wall of the form after which the nut will be threaded onto the opposite end of the tie rod. This arrangement' may be found satisfactory in cases where it is not desired to provide for the insertion of the tie rod from either side of the form.

While I have herein shown and described only certain embodiments of the features of my present invention, still I do not intend to limit myself to the same, except as I may do so in the claims.

I claim 1. The method of constructing concrete structures and the like which consists in first pre-assembling comprising a smooth exteriorly threaded connecting rod, and two internally threaded and socketed end sections of diameter at least as great as the diameter of the connecting rod, then in setting up the side walls of a form provided with aligned holes of a respective walls of the form, then threading nuts onto the projecting ends of the tie rod sections until said nuts bear against the side walls of the form, then in pouring a three part tie rod I structures and the like which consists in first pie-assembling a three part tie rod comprising a smooth connecting rod of relatively small uniform transverse diameter threaded at its ends, and two end sections of uniform larger diameter threaded to receive the ends of the connecting rod, then in setting up the side walls of a form provided with aligned holes of a size to permit the pre-assembled tie rod to be thrust endwise through the side walls from one side thereof to the extent necessary to bringthe outer ends of the end sections into projecting relation beyond the side Walls, one of said projecting ends carrying an enlarged stop member in abutting relation to the proximate side wall, then in threading a nut onto the projecting end of the other end section to abut against thecompanion side wall, then in pouring concrete between the walls, then in turning back one of the end sections to unthread it from the connecting rod, and then in withdrawing the end sections, substantially as described.

3. The method of constructing concrete structures and the like which consists in first pre-assembling a three part tie rod comprising a smooth connecting rod of relatively small transverse diameter threaded at its ends, and two end sections of larger diameter threaded to receive the ends of the connecting rod, then in setting up the side walls of a form provided with aligned holes of a size to permit the pro-assembled tie rod to be thrust endwise through the side walls from one side thereof to the extent necessary to bring the outer endsof the -end sections into projecting relation beyond the side walls, one of said projecting ends carrying an enlarged stop member in abutting relation to the proximate side wall, then in threading a nut onto the projecting end of the other end section to al at against 'the companion side wall, .her in pouring concrete between the walls, then in turning back one of the end sections to unthread it from the connecting rod, then in turning back the other end section to disconnect it from the connecting rod, and then in withdrawing the end sections, substantially as described.

4. The method of tying wall forms for concrete structures and the like which consists in setting up the walls of a concrete form, the Walls being provided with holes in alignment with one another, then inserting a tie rod assembly in three units consisting of two end sections and an intermediate smooth connecting rod section in aligned relation to one another and threaded together, the assembly having a central exterior diameter not larger than the diameter of the end portions thereof, and of a size to permit the entire assembly to be thrust endwise through both of the aligned holes to bring the ends of the assembly in to projected relation with respect to the side walls of the form, then in bringing end stop members on the projecting ends of the assembly into abutting relation to the said walls of the form, then pouring concrete between the walls, then in unthreading one of the end sections from the intermediate section, and then in withdrawing the end sections, substantially as described.

JOHN B. HAWLEY, JR. 

